Tomographic Aspects of Advanced Active Pulmonary Tuberculosis and Evaluation of Sequelae following Treatment

Figure 2

Computed tomography findings in TB. Axial view (a) and coronal reformatting (b) of TB before treatment, recorded in parenchymal window, indicating extensive consolidations intermingled with air bronchograms in the left lower lobe, associated with cavitary lesions and draining bronchus, confluent opacities, and bronchogenic dissemination characterized by airway nodules configuring the tree-in-bud pattern observed in the left upper lobe and right lung. Additionally, note the airway changes represented by increased wall thickness and bronchial dilation in the left upper lobe. (c) and (d) show the structural changes observed after treatment, characterized by volumetric reduction of the left lung, architectural distortions, thick bands of fibrous aspect on the left base, and bronchial changes in the left upper lobe.

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